ZA202101992B - Bi-prediction for video coding - Google Patents

Bi-prediction for video coding

Info

Publication number
ZA202101992B
ZA202101992B ZA2021/01992A ZA202101992A ZA202101992B ZA 202101992 B ZA202101992 B ZA 202101992B ZA 2021/01992 A ZA2021/01992 A ZA 2021/01992A ZA 202101992 A ZA202101992 A ZA 202101992A ZA 202101992 B ZA202101992 B ZA 202101992B
Authority
ZA
South Africa
Prior art keywords
prediction
bdof
coding
weights
enabled
Prior art date
Application number
ZA2021/01992A
Other languages
English (en)
Inventor
Yuwen He
Jiancong Luo
Xiaoyu Xiu
Yan Ye
Original Assignee
Vid Scale Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vid Scale Inc filed Critical Vid Scale Inc
Publication of ZA202101992B publication Critical patent/ZA202101992B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
ZA2021/01992A 2018-09-26 2021-03-24 Bi-prediction for video coding ZA202101992B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201862736790P 2018-09-26 2018-09-26
US201862786641P 2018-12-31 2018-12-31
PCT/US2019/053088 WO2020069076A1 (en) 2018-09-26 2019-09-26 Bi-prediction for video coding

Publications (1)

Publication Number Publication Date
ZA202101992B true ZA202101992B (en) 2023-10-25

Family

ID=69950792

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA2021/01992A ZA202101992B (en) 2018-09-26 2021-03-24 Bi-prediction for video coding

Country Status (10)

Country Link
US (2) US11553206B2 (zh)
EP (2) EP3857886B1 (zh)
JP (2) JP7398442B2 (zh)
KR (1) KR20210077671A (zh)
CN (1) CN112806005B (zh)
CA (1) CA3114103A1 (zh)
SG (1) SG11202103016RA (zh)
TW (1) TW202029755A (zh)
WO (1) WO2020069076A1 (zh)
ZA (1) ZA202101992B (zh)

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CN113330747A (zh) * 2019-01-14 2021-08-31 交互数字Vc控股公司 利用适应于加权预测的双向光流进行视频编码和解码的方法和装置
US11190797B2 (en) * 2019-03-01 2021-11-30 Qualcomm Incorporated Constraints on decoder-side motion vector refinement based on weights for bi-predicted prediction
SG11202112279WA (en) 2019-05-11 2021-12-30 Beijing Bytedance Network Technology Co Ltd Selective use of coding tools in video processing
WO2020236719A2 (en) 2019-05-19 2020-11-26 Bytedance Inc. Transform design for large blocks in video coding
KR20220009952A (ko) 2019-05-21 2022-01-25 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 서브블록 머지 모드에서의 신택스 시그널링
CN114175655B (zh) 2019-07-27 2024-01-02 北京字节跳动网络技术有限公司 根据参考图片类型使用工具的限制
KR20220073752A (ko) 2019-10-12 2022-06-03 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 비디오 코딩 툴들을 위한 상위 레벨 신택스
KR20220078600A (ko) 2019-10-18 2022-06-10 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 서브픽처들의 파라미터 세트 시그널링에서의 신택스 제약들
CN115606183A (zh) * 2020-04-07 2023-01-13 抖音视界有限公司（Cn） 参考图片环绕的剪裁操作
CN115486064A (zh) 2020-04-10 2022-12-16 抖音视界有限公司 标头语法元素和自适应参数集的使用
WO2021209061A1 (en) 2020-04-17 2021-10-21 Beijing Bytedance Network Technology Co., Ltd. Presence of adaptation parameter set units
KR20230002447A (ko) 2020-04-26 2023-01-05 바이트댄스 아이엔씨 비디오 코딩 신택스 요소의 조건적 시그널링
US11863774B2 (en) * 2021-01-15 2024-01-02 Tencent America LLC Method and apparatus for video coding
US20230171405A1 (en) * 2021-11-30 2023-06-01 Tencent America LLC Scene transition detection based encoding methods for bcw

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KR20180008445A (ko) 2015-06-10 2018-01-24 삼성전자주식회사 적응적 가중치 예측을 위한 신택스 시그널링을 이용하여 영상을 부호화 또는 복호화하는 방법 및 장치
US10271064B2 (en) * 2015-06-11 2019-04-23 Qualcomm Incorporated Sub-prediction unit motion vector prediction using spatial and/or temporal motion information
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Also Published As

Publication number Publication date
JP7398442B2 (ja) 2023-12-14
CA3114103A1 (en) 2020-04-02
EP4294009A3 (en) 2024-02-28
EP3857886B1 (en) 2024-04-03
EP4294009A2 (en) 2023-12-20
WO2020069076A1 (en) 2020-04-02
SG11202103016RA (en) 2021-04-29
US20230179795A1 (en) 2023-06-08
US20220007048A1 (en) 2022-01-06
EP3857886A1 (en) 2021-08-04
JP2022502924A (ja) 2022-01-11
CN112806005A (zh) 2021-05-14
TW202029755A (zh) 2020-08-01
US11553206B2 (en) 2023-01-10
CN112806005B (zh) 2024-04-23
JP2024023521A (ja) 2024-02-21
KR20210077671A (ko) 2021-06-25

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